Extremely poorly paced with research bottlenecking everything. Got script kiddies and found most of my gameplay was just waiting for research to complete with all other upgrades done.
As we told you before, cutting off players after a number of total delves is a bad system, you should have just limited players from progressing past level 4-5 or something.
Instead i got cut off when i was just harvesting wood/food on the first level. Very lame.